autologous (adjective)

1. In some religious ceremonies, an autologous offering is made by an individual to show devotion and faith.

2. In ancient Greek mythology, a hero's autologous blood was believed to possess extraordinary healing abilities.

3. At the comedy show, the comedian made a hilarious autologous joke about how he never knows what he's thinking.

4. During the American Civil War, autologous transfusions were performed for the first time by Dr. George Otis, saving many soldiers' lives.